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- Yokogawa
- CP451-51
- Processor Module CPU Power Supply Unit
- Japan
- 260 mm × 160 mm × 80 mm
- 1.2kg
- Xiamen, China
- New & In Stock
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Product Overview – CP451‑51
Introduction
The CP451‑51 is a high-performance processor module employed in CENTUM VP or CS DCS systems—typically within AFV300 / AFV400 Field Control Units. It replaces older CPU modules (e.g., CP451‑11), offering enhanced memory, processing speed, I/O capability, and options for explosion-proof or ruggedized variants.
Brand & Series
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Brand: Yokogawa
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Series: CP451 processor modules—central CPU hardware for DCS platforms
Key Specifications
| Parameter | Specification |
|---|---|
| Model | CP451‑51 |
| Processor | Dual-core PowerPC 440e at 1.0 GHz |
| Memory | ~512 MB SDRAM (some variants list 128 KB/128 MB program/data memory) |
| I/O Support | Up to 256 inputs and 256 outputs (model-dependent) |
| Sampling Rate | 1 Hz to 100 kHz |
| Accuracy | ±0.01 % Full Scale |
| Operating Temp Range | –40 °C to +70 °C (or –20 °C to +60 °C per variant) |
| Protection Level | Standard or ISA‑G3 explosion-proof; some IP65 / IP67 options |
| Communication Ports | Ethernet, RS‑422/485; supports Modbus RTU, TCP/IP, UDP/IP |
| Power Supply | 24 V DC (system chassis powered) |
| Maximum Power Consumption | Under 10 W (up to 20 W for some versions) |
| Dimensions (L×W×H) | ~260 mm × 160 mm × 80 mm |
| Weight | Approximately 1.2 kg |
| Reliability (MTTF) | Over 100,000 hours |
Applications
This module is ideal for:
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Core processing in CENTUM VP/CS distributed control systems
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High-complexity I/O environments—supporting hundreds of signals
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Fast-control applications with wide sampling rates
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Harsh, potentially explosive environments via G3 options
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Industries like oil & gas, chemical, power, pharmaceuticals, food & beverage, pulp & paper, textiles, water utilities, and more
Advantages
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Robust performance: Fast dual-core processing with substantial SDRAM capacity
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High I/O density: Supports up to 256 digital I/O points in legacy systems
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Wide sampling range: Accommodates applications from steady-state monitoring to high-speed control
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Rugged and safe: Explosion-proof (ISA G3) and high protection (IP65/IP67) variants available
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Long-term reliability: Built for harsh environments, high uptime, and extended service life
Related or Series-Compatible Models
| Model | Highlights | Dimensions (mm) | Weight (kg) |
|---|---|---|---|
| CP451‑11 | Earlier CPU variant with fewer I/O, lower performance | Similar module size | ~0.7 |
| CP451‑50 | Predecessor with quad-core CPU, modest memory | ~265 × 305 × 35 | ~3.5 |
| CP451‑10 | Base-level CPU module with basic DCS capabilities | Compact DIN-style | ~0.45 |
| CP451‑50 S2 | Upgraded CP451-50 version with faster memory and logic | Similar to CP451‑50 | ~0.7 |
| CP452‑xx | Analog-capable processing variants within same family | Similar enclosures | ~0.6 |
Other Popular Yokogawa Modules
| Model | Core Function | Size (Approx.) | Weight (kg) |
|---|---|---|---|
| AAI143‑S50 | 16-channel isolated analog input module | Small DIN module | ~0.3 |
| AAI543‑S50 | 16-channel analog output | Similar DIN module | ~0.4 |
| ADV551‑P00 | Fast-response digital output module | Compact, panel-mount | ~0.35 |
| SDV144‑S53 | 16-channel digital input with diagnostic LEDs | DIN-style module | ~0.3 |
| PW402 | Power supply module for DCS cabinets | Similar to CPU size | ~0.9 |
FAQ (10 Q&A)
Q1: What processor does it use?
A1: Dual-core PowerPC 440e running at 1.0 GHz.
Q2: How much memory is available?
A2: Typically around 512 MB SDRAM; older variants list 128 KB program / data memory.
Q3: What I/O density can it support?
A3: Up to 256 input and 256 output points, depending on configuration.
Q4: What sampling capabilities does it offer?
A4: Sampling rates range from very slow (1 Hz) up to 100 kHz.
Q5: Does it support explosive or hazardous environments?
A5: Yes—available in ISA G3 explosion-proof or IP65/IP67 protection variants.
Q6: What communication protocols are supported?
A6: Ethernet, RS‑485/RS‑422, supporting Modbus RTU, TCP/IP, UDP/IP.
Q7: What’s the temperature tolerance?
A7: Typically –40 °C to +70 °C (or –20 °C to +60 °C depending on variant).
Q8: What are its dimensions and weight?
A8: Roughly 260 × 160 × 80 mm; weight around 1.2 kg.
Q9: How reliable is it in continuous use?
A9: Very reliable, with an MTTF exceeding 100,000 hours.
Q10: What industries commonly use this module?
A10: Widely used in oil & gas, chemical, power plants, food & beverage, pharmaceuticals, utilities, pulp & paper, metals, and textiles.
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Fast delivery. Spot goods can be shipped on the same day, and the delivery time transaction is 20% faster than that of peers on average, with a delivery time accuracy rate of 99%.
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